Four Seasons 33662 A/C Receiver Drier

Four Seasons 33662 A/C Receiver Drier

The Four Seasons 33662 filter drier is a steel A/C receiver drier built for HVAC service on select Mercedes-Benz applications. It includes a service port and sight glass, and it meets or exceeds OEM requirements for the listed fitment.

Compatible with 1986-1989 Mercedes-Benz 560SL, this Four Seasons 33662 receiver drier is a direct-fit HVAC service component for restoring refrigerant system performance. The Four Seasons Filter Drier line focuses on replacement parts that match the original system layout and connection style.

Key Features

• Steel body construction for A/C system durability
• Male insert O-ring inlet and female insert O-ring outlet
• 3/8 in. inlet and outlet fittings
• Service port and switch port included in the design
• Sight glass for refrigerant system inspection
• Desiccant included; desiccant is not replaceable
• Gaskets/seals included
• Meets or exceeds OEM specifications
• Direct replacement for Four Seasons 33662

Detailed Description

The Four Seasons 33662 A/C receiver drier is designed for vehicles using a steel filter drier with 3/8 in. male and female insert O-ring connections. Its 2.875 in. body diameter and 7.000 in. body length support the original HVAC packaging, while the integrated sight glass and service port provide practical inspection and service access. This part cross-references UAC RD0968C for the same application.

For Mercedes-Benz 560SL models from 1986 through 1989, this receiver drier helps maintain proper refrigerant flow management by housing desiccant material and filtering moisture from the system. The Four Seasons 33662 part number is also referenced in aftermarket interchange listings, making it easier to identify the correct replacement during A/C repair work.

What It Helps Address

• Moisture contamination in the A/C refrigerant circuit
• Reduced cooling performance caused by a saturated receiver drier
• Service issues related to worn or incorrect O-ring connections
• Inspection needs when checking refrigerant condition through the sight glass
• Replacement of a leaking or aging receiver drier assembly

Installation Notes and Tips

Verify the inlet and outlet fitting style, thread diameter, and overall body dimensions before installation. Replace the O-rings with the correct seals for the system, and confirm that the service port and switch port match the vehicle’s original HVAC configuration. Always evacuate and recharge the A/C system according to factory service procedures after receiver drier replacement.

Quality Assurance

This Four Seasons receiver drier is built to meet or exceed OEM requirements for the listed application. It is intended for direct replacement use on compatible Mercedes-Benz 560SL models and follows the dimensional and connection specifications shown for Four Seasons 33662.